package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 报表管理
 */
@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;

    @Reference
    private SetmealService setmealService;

    @Reference
    private ReportService reportService;


    //查询会员数量折线图
    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        //模拟数据
        /*Map<String, Object> map = new HashMap<>();
        List<String> months = new ArrayList<>();
        months.add("2018.11");
        months.add("2018.12");
        months.add("2019.01");
        months.add("2019.02");
        months.add("2019.03");
        map.put("months", months);

        List<Integer> memberCount = new ArrayList<>();
        memberCount.add(100);
        memberCount.add(150);
        memberCount.add(180);
        memberCount.add(200);
        memberCount.add(300);
        map.put("memberCount", memberCount);*/

        Map<String, Object> map = new HashMap<>();
        List<String> months = new ArrayList<>();

        //计算过去一年的月份
        Calendar calendar = Calendar.getInstance();//获取日历对象，默认就是当前时间

        calendar.add(Calendar.MONTH, -12);//获取12个月之前的时间

        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH, 1);//获取下个月的时间
            Date date = calendar.getTime();//获取日期
            months.add(new SimpleDateFormat("yyyy.MM").format(date));
        }
        //添加月份数据
        map.put("months", months);

        //每月会员数量集合
        List<Integer> memberCount = memberService.findMemberCountByMonths(months);
        map.put("memberCount", memberCount);


        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }

    //套餐占比饼形图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        //模拟数据
        /*Map<String, Object> data = new HashMap<>();

        List<String> setmealNames = new ArrayList<>();
        setmealNames.add("体检套餐");
        setmealNames.add("孕前检查");

        data.put("setmealNames", setmealNames);


        List<Map<String, Object>> setmealCount = new ArrayList<>();
        Map valueMap1 = new HashMap();
        valueMap1.put("name", "体检套餐");
        valueMap1.put("value", 200);

        Map valueMap2 = new HashMap();
        valueMap2.put("name", "孕前检查");
        valueMap2.put("value", 300);

        setmealCount.add(valueMap1);
        setmealCount.add(valueMap2);


        data.put("setmealCount", setmealCount);*/


        //创建返回值map集合 - 准备给前台页面返回的用于饼形图展示数据的map集合
        Map<String, Object> data = new HashMap<>();

        try {
            //查询套餐名称与预约数量的键值对集合
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();
            data.put("setmealCount", setmealCount);


            List<String> setmealNames = new ArrayList<>();

            for (Map<String, Object> map : setmealCount) {
                String name = (String) map.get("name");//套餐名称
                setmealNames.add(name);
            }
            data.put("setmealNames", setmealNames);


            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    //获取运营数据统计
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        //模拟数据
        /*Map<String, Object> data = new HashMap<>();
        data.put("reportDate","2019.10.10");//当日日期
        data.put("todayNewMember", 100);//今日新增会员
        data.put("totalMember", 20000);//总会员数
        data.put("thisWeekNewMember", 300);//本周新增会员
        data.put("thisMonthNewMember", 500);//本月新增会员
        data.put("todayOrderNumber", 150);//今日预约订单数
        data.put("todayVisitsNumber", 100);//今日到诊数
        data.put("thisWeekOrderNumber", 300);//本周预约订单数
        data.put("thisWeekVisitsNumber", 290);//本周到诊数
        data.put("thisMonthOrderNumber", 500);//本月预约订单数
        data.put("thisMonthVisitsNumber", 400);//本月到诊数

        List<Map<String, Object>> hotSetmeal = new ArrayList<>();
        Map<String, Object> valueMap1 = new HashMap<>();
        valueMap1.put("name", "阳光爸妈升级肿瘤12项筛查（男女单人）体检套餐");//套餐名称
        valueMap1.put("setmeal_count", 300);//套餐预约订单数
        valueMap1.put("proportion", 0.5);//该套餐预约数量占比
        Map<String, Object> valueMap2 = new HashMap<>();
        valueMap2.put("name", "阳光爸妈升级肿瘤12项筛查体检套餐");
        valueMap2.put("setmeal_count", 100);
        valueMap2.put("proportion", 0.2);
        hotSetmeal.add(valueMap1);
        hotSetmeal.add(valueMap2);
        data.put("hotSetmeal",hotSetmeal);*/

        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }


    //导出运营数据excel
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();

            //动态获取今天日期
            String reportDate = (String) result.get("reportDate");
            //今日新增会员数量
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            //总会员数量
            Integer totalMember = (Integer) result.get("totalMember");
            //本周新增会员数量
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            //本月新增会员数量
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            //今日预约订单数量
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            //本周预约订单数量
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            //本月预约订单数量
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            //今日到诊数量
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            //本周到诊数量
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            //本月到诊数量
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            //热门套餐
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获得模板路径
            //File.separator 根据系统识别应该获取的目录分隔符
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";

            //基于提供的excel表格模板创建excel表格对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));

            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);
            //获取第三行
            XSSFRow row = sheet.getRow(2);
            //第六个格子
            row.getCell(5).setCellValue(reportDate);        //日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);    //今日新增会员数量
            row.getCell(7).setCellValue(totalMember);       //总会员数量

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember); //本周新增会员数量
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数量

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);  //今日预约订单数量
            row.getCell(7).setCellValue(todayVisitsNumber); //今日到诊数量

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约订单数量
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数量

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");                                //代表的是Excel文件的mime类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);

            out.flush();
            out.close();
            excel.close();

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据PDF
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            //1.调用service，获取运营数据map集合
            Map<String, Object> result = reportService.getBusinessReportData();
            //2.从map集合中获取热门套餐
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //3.动态获取pdf模板文件绝对磁盘路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("/template") + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("/template") + File.separator + "health_business3.jasper";

            //4.编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            //5.填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));

            //6.创建输出流，用于从服务器写数据到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");


            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint, out);

            out.flush();
            out.close();

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
